Window-control mechanism



Feb. 18; 1930. E. J. 600K 1,747,427

Filed May 21, 1923 2 Sheets-Sheet 1 n u u u n n Feb. 18, 1930. I E. J. COVOK 1,747,427

I WINDOW CONTROL MECHANISM.

Filed May 21, 1923 2 Sheets-Shea! '2 lilmf 3110711170 Everatfic/J @oo 19/ I Gumm I V Patented Feb. 18, 1939 UNITED STATES PATENT oFFicE EVERETT J. coox, 0E ToLEno, OHIO, ASSIGNOR, BY MEsNE ASSIGNMENTS, To THE nnEA COMPANY, OF TOLEDO,

OHIO, A CORPORATION OF OHIO WINDOW-CONTROL MECHANISM Application filed May21, 1923. Serial No. 640,599.

This invention relates to window control mechanisms and relates particularly to devices for adjusting the sliding windows of motor vehicles. The invention may be regarded as an improvement upon the disclosure of applicants copending application Serial Number 618,736.

Said invention consists in the structural features and arrangement of parts hereinafter fully set forth.

In the drawings Figure 1 is an interior view of an automobile door equipped with the improved control mechanism;

Figure 2 is a view similar to Figure 1 but showing the lifter drawn to an enlarged scale;

Figure 3 is a bottom plan View of the same, partly in section;

Figure 1 is a vertical sectional view on line 4.4: of Figure 2.

In these views, the reference character 1 designates an automobile door having in its upper portion a window opening 2 and provided with a closure for said opening having the nature of a vertically slidable glass plate 3. Said plate, when lowered, is adapted to enter a well or chamber a formed in the lower portion of the door. Across the door, just below the window opening, is extended the usual lock board 5 and to said board there is secured a depending sheet metal bracket 6. Said bracket is formed below the lock board with a circular opening, the margin of which forms an internal gear 7. With said gear there is meshed an external gear 8 which is of slightly less diameter and which may also be a sheet metal stamping. The gear 8 is journaled upon an eccentric portion 9 of a shaft 10 transverse to the bracket 6', the eccentricity of the shaft portion 9 being equal to one half the difference in diameter of the gears 7 and 8 so that the smaller or external gear is in mesh with the larger or internal gear, the point of engagement rotating with the eccentric 9 as the shaft 10 is turned. Said shaft is journaled in a bushing 11 which is rigidly mounted in an opening of an auxiliary bracket plate 12 riveted at its upper and lower ends to the main plate 6 as indicated at 13, the end portions of said auxiliary plate being bent slightly so as to space the main body of said plate from the bracket 6. Between the plates 6 and 12 there is spirally coiled a spring 14, the inner end of which is anchored to the plate 12, while its outer end hooks beneath a control arm 15 which is also mounted loosely upon the eccentric 9 and is riveted to the gear 8, as indicated at-16. 17 is an actuating handle for the shaft 10 mounted upon said shaft adjacent the free end of the bushing 11.

In the operation of the described invention, when the shaft 10 is rotated by the handle 17, the gear 8, owing to its eccentric mounting, travels orbitally in constant mesh with the internal gear 7 Owing to the slight difierence in diameter between the two gears, the smaller gear will advance rotatively only a small fraction of a revolution for each bodily actuation of said gear through a complete turn. Thus, by employment of the proper predetermined ratio between the two gears, the smaller one, carrying the arm 15 is angularly shifted responsive to a predetermined number of turns of the crank handle, sufficiently to raise or lower the glass through the desired distance. The spring 1 L exercises a constant upward effort upon the arm 15 such as to substantially counterbalance the weight of the closure 3. The mechanism is inherently self locking so that the closure is firmly held in its desired adjustment. The bodily orbital travel of the arm 15 resulting from the-mounting thereof upon the driven eccentric 9 does not appreciably interfere with a steady upward or downward actuation of the glass by the arm, since the diameter of said orbital movement is very small as compared to the effective radius through which the arm swings to shift the glass. v

- The described construction is desirably light and compact, possesses the advantages of a unitary mounting, andvlends itself to quantity production at low cost, through the use of sheet metal stampings for its main parts. I

Because of its thinness the described lifter may be installed in doors where the clearance at the inner side of the glass is quite small.v

I What I claim as my invention is 1. Awindow control mechanlsm comprising a pivotal control arm, and a pair of gears establishingadrive connection to said said axis thereof, and means for actuating sald arm, one internally meshing with the other, said arm {being rigidly carried by-one ;of gears and extending transversely of the a gear, orbitally of the other gear in constant mesh therewith. I a V 2;1In a window control mechanism, the

combination with an actu ating'element, of

an external gear rigidly connected to said i element, said element extending-transversely of the axis of said external gear, a stationary' nternal gear meshlng. with said external gear, and means for actuating the external V gearbodily about-the axis oftthe internal geari in constant mesh therewith. 3. In a window control mechanism, the

combination with a pivotal window control element,:'of an external gear rigidly secured thereto and extending transversely of the pivot a plate supporting said element and forming an internal gear engaged by said external gear, and means carried by'said plate for actuating said external gear bodily around the axis of the: internal gear in constantflmcsh with the latter.

.Lc-ln a window control -mechan1sm', the

combina-tion with a window control element,

ofan external gear rigidly secured to said element,=a plate, a stationary internal gear inmesh with said external gear, a shaft carc 'jriedby saidplate having ,an eccentric portion carrying; said control elementand external gear, and adrive means for said shaft, In awindow control mechanism, 1 the combination with the control element for a window, of a sheet metal bracket having an 7 v opening marginally forming an internal 1 gear, an external gearsecured to said element' intermeshing with said internalgear,

' aninternal gear meshing with said external gear and having a. greater number ofcteeth, and'means for actuating said external gear bodilp i 8. na window control mechanism, the combination witha Window control element, of intermeshing internal and movable bodily withthe former, a rotatable shaft having aneccentricportion upon which said gea-r secured .to said control element is journaled, and means for rotating said shaft; 9, In a window control mechanism,- the combination with a bracket adapted to be secured to and extend, below the lock board of a 'veliicle'door, a transverse shaft carried by said bracket and spaced from an. edge of the look board, a window control element, means for actuating said control element, in-

cluding a toothedmember pivoted 'onvsaid about the axis of said internal gear. 3

external. gears, 7 i one of said/gearsbeing rigidly secured to p .said control element whereby the latter is a'plate carried by said bracket and spaced slightly'therefrom, ashaft journaled in said plate having an eccentric portion mounting said external gearand "control'element, the eccentricity of said shaftbeing selected to maintain J the external" gear constantly meshed with the internal gear,"actuating means for said shaft, and a spiral counterbalancing spring arranged between said main 7 plate and auxiliary plate.

6. In a window. control mechanism, the combination with a pivotal control arm," of

V intermeshing internal 1 and external gears,

one of-said vgears being rigidly connected to said control arm and being movable orbitally of the. other'ge'ar and said control arm extending'transverselyof the axis of, said gear connected thereto.

7 7.-In a window control mechanism,the combination with apivotal controlarm, of

'an'external gear rigidly connected to said arm and extending transversely of the pivot, 

